Carbureter.



2 SHEETS-SHEET Attorneys PATENTED JAN. 8, 1907.

y'aiz farmzz by I I nvencor B. D. P-ARROTT. GARBURETIER. APPLICAIIONFILED NOV. 3, 1905.-

THE "cams PETERS co., wnsnmarou, n. c

Witnesses UNITED STATES PATENT onnron;

. ELIJAH D..1 ARROTT, OF PORTLAND, OREGON.

CARBURETER.

To all whom it may concern:

Be it known that I, ELIJAH D. PARROTT, a

citizenof the United States, residing at Portland, in the county ofMultnomah and State of Oregon, have invented anew and useful Oarbureter,of whichthe following is a specification.

This invention relates to carburetors, and has for its principal object;to provide a device of simple construction by which air may bethoroughly saturatedwith hydrocarbon or a previously-formed gas'mayv beenriched in carbon. 7

Afurther object of the invention is to provide a carbureter in whichlow-grade hydrocarbon may be successfully employed by providing meansfor atomizing or spraying the liquid.

A still further object of the invention is to provide a carbureterinwhich the air is passed through a casing or tank containing hydrocarbonin an atomized state or in the form of a fine spray, so that it may bereadily absorbed by the air.

A still further object of the invention is to provide a carbureter whichincludes'means for reducing the oil to the form of a spray or to providemeans whereby the carburetin chamber or tank will be completely fillewith hydrocarbon in an atomized state.

A still further object of the invention is to provide a carbureter inwhich means are employed for agitating and mingling a volume 'which avery small inafter fully described, illustrated in the accompanyingdrawings, and particularly pointed out in the appended claims, it beingunderstood that various changes in the form, proportions, size, andminor details of the structure may be made without departing from thespirit or sacrificing any of the advantages of the invention.

In the accompanying drawings, Figure 1 is a vertical section of acarbureting device constructed in accordance with the invention.

Specification of Letters Patent. Application filed November 3. 1905.swarm. 285.754.

Fig. 2 isa transverse sectional view of the same on" the line 2 2 ofFig. 1. Figs. 3 and 4 are sectional views illustrating slightlymodifiedconstructions of the carbureter.

Similar numerals of reference are em-' ployed to indicate correspondingarts throughout the several figures. of the rawings.

In carrying out the invention a casing 10 Patented Jan. 8, 1907.

of cylindrical form is mounted on a suitable base 11 and is connected byapipe 12 to a supply-tank 13, filled with the hydrocarbon to beemployed. The pipe 1 2 extends within the lower portion of thecasing andis provided with a float-operated valve 14, which is opened and closedin accordance with the level of liquid within the casing 10, the objectof the float belng to maintain aconstant level within said casing.

" The casing is provided with bearings for the reception of atransversely-disposed shaft 15, that is arranged somewhat below theexact center of the casing. This shaft is provided at one end with agear 16 or similar member, that may be driven'in any suitable manner. Y

To the central portion of the shaft is secured a hub 17, provided withdiametricallyopposed hollow arms 18, that are arranged to receiverevoluble spraying members 19 the stems 20 of said spraying membersbeing arranged within the hollow arm and held in any desired positionofadjustment by setscrews 21. The revoluble spraying members 19 are in theform of brooms 0r brushes, each comprising a bunch of resilient strandsor bristles formed of wire, broo1nstraw, bristles, strips of metal,wood, or other'I'Iiaterial, which when dipped into the body of liquid inthe bottom of the casing will carryup a small quantity of such liquid.

The casing is provided witha plurality of transversely-extending bars 22which are disposed in the path of movement of the spraying devices 19,and the end portions of the resilient member come into contact with saidbar and are retarded thereby, such.

resilient members being allowed to escape gradually from contactwith.the bar, and

the sudden release of said members-effectmg the discharge of the liquidhydrocarbon in the form of drops or in the form of a spray. The bars arearranged at frequent intervals, and any desired number of movablespraying members 19 may be employed; but in all cases the contact of themovable spraying member with the fixed bar or similar retarding devicewill'result in the discharge of the liquid practically in atomized form,so that the entire chamber is filled with liquid in finely-divided form,and air passing therethrough. will be thoroughly saturated.

The air or gas to be enriched enters the -casing through aport '25 anddischarges through a port 26; but in order to prevent the direct flow ofa current of air between the two ports the shaft is provided withradially-disposed blades or paddles 27, which as they revolve will actto mix a volume of air with the finely-divided hydrocarbon, so

that the air will take upthe liquid to its fullest capacity.

the interior of the casing. The fan serves also to prevent the directpassage of a current of air between the inlet and the outlet ports andis effective in intermingling the ,air and atomized liquid.

In some cases the revoluble spraying devices may :be in the form ofbrushes 19,

mounted on an annulus 40 and arranged to dip into the liquid, and thencepass into engagement withstationary bars 22, by means of which theliquid is removed from the sprayers in finely-divided form. Theconstruction shown in Fig. 4 illustrates a further modification, whereinthe spraying element is .in the form of a revoluble brush 19F, thatis,arranged to dip into the hydrocarbon and thence pass into contact witha' bar or plate 22 for the purpose of discharging the hydrocarbon inatomized form.

' With a device constructed in accordance with this invention the lowestgrades of hydrocarbon may be successfully employed for carbureting airor gas, 'and'a comparatlvely small amount of hydrocarbon may be used intreating a relatively large volume -of air.

Having thus described the invention, what is claimed 1s 1. In acarbureter, a casing arranged to contain a body of hydrocarbon, a shaft,an

arm carried thereby, a spraying member adjustable on said arm, and aplurality of rigid bars disposed in the pathof movement of said sprayingmember.

2. In a carbureter, a casing arranged to contain a body-of liquidhydrocarbon, a movable shaft, hollowarms carried thereby, sprayingmembers having stems arranged within said hollow arms, means for lockingsaid ste'ns in adjusted position, and a plurality of spaced bars carriedby the casing .ried by the shaft, and an auxiliary fan arranged adjacentto the inlet-port and serving to direct a current of air around theinterior of the casing.

4. In a carbureter, a casing having inlet and discharge ports andarranged to contain a body of hydrocarbon, a revoluble shaft, sprayingmembers and agitating-blades both carried by said shaft, and means forengaging the spraying members during the rotative movement of the latterto effect the discharge of the hydrocarbon in the form of a spray.

In testimony that I claim the foregoingas vmy own I have hereto a'liiXed my signature in the presence of two witnesses.

ELIJAH D. PARROTT.

Witnesses:

W. A. SHAW, M. A. LINDEN.

